Kérastase creates Resistance Force Architecte to reinforces the hair fibre. Hair feels stronger from root to tip. Recherche AvancÉe L' OrÉal identified 4 levels of hair fibre erosion & has created Ciment-Cylane 3 Complex. For the fi rst time in Kérastase, Intra-Cylane, Pro-Keratin & Ceremide have been combined together in each step of the haircare routine. The formula is able to target high levels of erosion & provides intense condition to the hair, leaving it feeling replenished & stronger. Kérastase Bain Force Architecte Reconstructing Shampoo is Kérastase's first in-salon solution to fight high levels of hair erosion, for example, split ends & broken hair.